
Sure, Walker did hallucinate but not because he was guilty of his action.no, because he was forced into doing horrible things (and he he felt guilty, he felt horrible for what he HAD to do) he never wanted to do. What they got themselves into was totally out of their hand.out of their control. There were guys killing innocents, the special ops guy who wanted to rid the town of water for no good reason.Walker and his men were, in fact, the only ones left who actually tried to help everybody. I blame the radio man and the other lunatics that were in the game. Instead he just told 'em "Did you think you can just walk in here harr harr harr" and enjoyed soldiers getting ripped apart while sitting in a comfy chair. The radio man had the power to tell "his" troops to stop shooting at Walker and his men. He went in to help people.all the killing they did in the game was actually self defense. Walker never actually started the firefights. Whenever there's a fade to white, it means that Walker is hullucinating. The best way of figuring this out is watching the transisions. The whole game still happened, but the game just became clouded with hollucinations as Walker does bad stuff. He still kept killing and doing bad things, he was just constantly justifying it with "It's Konrad's fault, he needs to pay." This tricks the player into seeing the 33rd as the bad guys and continue the delusion that they are still a hero. After killing those civillians with the white phosphirus, his mind couldn't take the truth of what he was doing, so he began imagining Konrad talking to him, giving him someone to blame other than himself.

That takes its toll on the men, particularly Walker. You try to go into Dubai and save the day but do nothing but kill and destroy. They weren't really bad people, they were American soldiers and civillians that you were only killing because of a missunderstanding. All through the game you were killing people.
